200 Top SEO Ranking Factors May 2026

TOP SEO Factors for 2026-05 previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Unique LSI Words Used Diversity	-0.23	975	293	82 %	82 %
2	Load Time Milliseconds Performance	-0.22	29874	1387	82 %	94 %
3	Search Result Domain is .com, .net, or .org Other	-0.22	1	1	6 %	83 %
4	Search Result Domain is .com Other	-0.22	1	1	6 %	83 %
5	Number of Top 100 Shared Factors Used Diversity	-0.21	38	28	97 %	95 %
6	Number of Top 200 Shared Factors Used Diversity	-0.21	51	37	97 %	94 %
7	Number of Top 50 Shared Factors Used Diversity	-0.21	16	12	96 %	94 %
8	Variations in H1, H2, and H3 Tags Relevancy	-0.2	378	9	56 %	90 %
9	Number of Unique Variations Used Diversity	-0.2	19	6	75 %	92 %
10	Variations in H1-H6 Tags Relevancy	-0.2	409	10	57 %	91 %
11	Variations in H1 and H2 Tags Relevancy	-0.19	287	5	55 %	92 %
12	Number of Distinct Entities Used Diversity	-0.19	61	28	76 %	96 %
13	Variations in P Tags Relevancy	-0.19	4557	72	59 %	91 %
14	Entities in Title Tag Relevancy	-0.19	7	3	63 %	94 %
15	Variations in Div Tags Relevancy	-0.19	68329	567	68 %	92 %
16	Entities in Sentences Relevancy	-0.19	1308	136	65 %	95 %
17	Entities in the HTML Tag Relevancy	-0.19	1436	139	70 %	95 %
18	Variations in Body Tags Relevancy	-0.19	93621	648	73 %	90 %
19	Entities in H2 Tags	-0.18	46	7	48 %	96 %
20	Variations in HTML Tags Relevancy	-0.18	93621	644	73 %	91 %
21	Variations in Search Result Document File Name Relevancy	-0.18	8	1	40 %	85 %
22	Entities in H1 Tags	-0.18	5	2	49 %	92 %
23	Number of Factors Used Diversity	-0.18	272	170	97 %	91 %
24	Variations in LI Tags Relevancy	-0.18	2914	49	57 %	88 %
25	Number of Backlinks Authority	-0.18	382197	11054	49 %	76 %
26	Number of Referring Domains Authority	-0.18	3169	178	49 %	76 %
27	Variations in H1 Tags Relevancy	-0.18	20	1	48 %	86 %
28	Word Count Size	-0.18	4408	1423	83 %	91 %
29	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	32	2	38 %	86 %
30	Variations in H2 Tags Relevancy	-0.18	280	4	41 %	90 %
31	Unabridged Word Count Size	-0.18	10152	1849	83 %	91 %
32	Number of Heading Tags Size	-0.17	49	21	69 %	89 %
33	Variations in Search Result URL Path Relevancy	-0.17	10	1	42 %	85 %
34	LSI Words in Sentences Relevancy	-0.17	2378	718	62 %	96 %
35	Variations in Sentences Relevancy	-0.17	8372	97	67 %	91 %
36	Variations in Search Result Display URL Relevancy	-0.17	19	2	75 %	81 %
37	Variations in Search Result Link Text Relevancy	-0.17	19	2	75 %	81 %
38	Clean Text Kilobytes Size	-0.17	56	12	69 %	90 %
39	Number of Do Follow Backlinks Authority	-0.17	377721	9520	45 %	76 %
40	Number of H2 Tags Size	-0.17	23	7	62 %	89 %
41	Leading Variations in H1-H6 Tags Relevancy	-0.17	36	2	40 %	87 %
42	Entities in H3 Tags	-0.17	40	7	40 %	93 %
43	Term Frequency Relevancy	-0.17	6	3	73 %	91 %
44	Number of P Tags Size	-0.17	123	38	68 %	89 %
45	Variations in the Title Tag Relevancy	-0.17	23	2	61 %	85 %
46	Number of No Follow Backlinks Authority	-0.17	61104	1889	36 %	70 %
47	Variations in A Tags Relevancy	-0.17	9305	79	58 %	88 %
48	Number of HTML Tags Size	-0.17	2805	1017	82 %	89 %
49	Variation Count in Top 30KB Relevancy	-0.17	4928	50	60 %	89 %
50	Number of Images Size	-0.17	309	29	69 %	90 %
51	LSI Words in H2 Tags Relevancy	-0.16	91	21	52 %	94 %
52	Number of H1 Tags Size	-0.16	3	1	65 %	91 %
53	Number of HTTPS Links Authority	-0.16	623	134	74 %	88 %
54	Number of DoFollow Links Authority	-0.16	614	132	74 %	88 %
55	Variations in A Tag HREF Attributes Relevancy	-0.16	2876	56	52 %	88 %
56	Number of Internal Links Authority	-0.16	619	122	74 %	88 %
57	Number of Links Authority	-0.16	624	135	74 %	89 %
58	Variations in Span Tags Relevancy	-0.16	1077	17	44 %	87 %
59	Search Result Number of Dirs in Path Other	-0.16	3	2	72 %	79 %
60	Variations in Distinct A Tag HREF Attributes Relevancy	-0.16	1808	36	52 %	89 %
61	Number of Images with ALT Text Size	-0.16	304	20	63 %	88 %
62	Variations in First 100 Words Relevancy	-0.16	177	7	59 %	86 %
63	LSI Words in H1 Tags Relevancy	-0.16	10	4	53 %	95 %
64	LSI Words in Title Tag Relevancy	-0.16	15	6	65 %	91 %
65	Variations in Search Result URL Relevancy	-0.16	21	2	51 %	80 %
66	Has Entities in H1 Tags Relevancy	-0.16	1	1	50 %	89 %
67	Variations in Main Tags Relevancy	-0.16	40166	313	35 %	87 %
68	Variations in Absolute URLs Relevancy	-0.16	14393	161	55 %	89 %
69	Variations in the Canonical URL Relevancy	-0.16	50	2	44 %	83 %
70	Number of Includes Technology	-0.15	68	26	77 %	79 %
71	Number of H3 Tags Size	-0.15	26	9	55 %	84 %
72	Has Entities in H2 Tags Relevancy	-0.15	1	1	49 %	89 %
73	Variations in Script Tags Relevancy	-0.15	52712	380	60 %	87 %
74	Variations in OpenGraph Title Relevancy	-0.15	16	1	52 %	83 %
75	Clean Keyword Density in the HTML Tag Relevancy	-0.15	203	7	64 %	78 %
76	Number of Images without ALT Text Size	-0.15	34	9	52 %	87 %
77	Variation Density in Top 30KB Relevancy	-0.15	310	7	57 %	82 %
78	Average Words Per Sentence Size	-0.15	172	29	73 %	85 %
79	Leading Variations in H1 Tags Relevancy	-0.15	2	1	24 %	82 %
80	Entities in Meta Description Tag Relevancy	-0.15	19	3	55 %	91 %
81	Variations in Meta Description Relevancy	-0.15	49	2	51 %	83 %
82	Number of Facebook Pages Authority	-0.15	4	2	51 %	81 %
83	Number of External Links Authority	-0.15	41	15	71 %	87 %
84	Number of DoFollow External Links Authority	-0.15	40	13	70 %	86 %
85	Variations in H3 Tags Relevancy	-0.15	123	4	32 %	85 %
86	Exact Matches in the HTML Tag Relevancy	-0.15	242	12	31 %	88 %
87	Variations in ALT Attributes Relevancy	-0.15	588	8	39 %	87 %
88	Variations in OpenGraph Description Relevancy	-0.15	45	2	46 %	80 %
89	Number of Sentences Size	-0.15	612	147	79 %	86 %
90	Number of HTML Comments Size	-0.15	521	46	65 %	88 %
91	Number Of JSON-LD Types Relevancy	-0.15	63	13	52 %	85 %
92	Leading Variations in Title Tag Relevancy	-0.15	1	1	28 %	81 %
93	TF/IDF Relevancy	-0.15	2	1	55 %	87 %
94	Variations in Section Tags Relevancy	-0.15	1250	27	34 %	90 %
95	Variations in Nav Tags Relevancy	-0.14	7034	98	41 %	87 %
96	Has JSON-LD Schema Markup Relevancy	-0.14	1	1	49 %	81 %
97	Is Home Page Other	-0.14	1	1	18 %	40 %
98	Leading Variations in H2 Tags Relevancy	-0.14	22	1	20 %	84 %
99	Percentage of DoFollow Links Authority	-0.14	99	79	75 %	92 %
100	Number of Questions In Headings Size	-0.14	7	2	34 %	83 %
101	Percentage of DoFollow Internal Links Authority	-0.14	92	68	73 %	85 %
102	Flesch Kincaid Reading Grade Level Other	-0.14	6	1	93 %	86 %
103	Number of US Phone Numbers Trust	-0.14	249	10	36 %	81 %
104	LSI Words in H3 Tags Relevancy	-0.14	97	21	45 %	90 %
105	Exact Matches in H1-H6 Tags Relevancy	-0.14	8	1	19 %	85 %
106	Title Tag Has Entities Relevancy	-0.14	1	1	64 %	87 %
107	Percentage of DoFollow External Links Authority	-0.14	25	12	69 %	81 %
108	LSI Words in Meta Description Tag Relevancy	-0.14	23	10	54 %	91 %
109	Number of Forms Technology	-0.14	10	2	45 %	81 %
110	Inline CSS Kilobytes Size	-0.14	189	61	63 %	86 %
111	Number of CSS Includes Technology	-0.14	22	9	69 %	78 %
112	Has Privacy Policy Trust	-0.14	1	1	58 %	75 %
113	Has Entities in H3 Tags Relevancy	-0.14	1	1	41 %	87 %
114	Number of JavaScript Includes Technology	-0.14	46	18	77 %	79 %
115	Has US Phone Number Trust	-0.14	1	1	37 %	74 %
116	Has Meta Charset Technology	-0.14	1	1	70 %	83 %
117	Variations making whole H1, H2, and H3 Tags Relevancy	-0.14	3	1	11 %	77 %
118	Title Word Count Size	-0.14	28	8	79 %	75 %
119	Number of LinkedIn Pages Authority	-0.14	8	1	29 %	77 %
120	Variations making whole H1-H6 Tags Relevancy	-0.14	3	1	13 %	79 %
121	Search Result Domain Length Size	-0.13	23	16	81 %	81 %
122	Search Result Host Length Size	-0.13	23	16	81 %	81 %
123	Title Length Size	-0.13	100	51	80 %	76 %
124	Uses JSON-LD name Other	-0.13	1	1	49 %	80 %
125	Variations in Footer Tags Relevancy	-0.13	6817	43	32 %	84 %
126	Has Form Technology	-0.13	1	1	45 %	77 %
127	Number of Absolute URLs Authority	-0.13	872	273	81 %	83 %
128	Variations in Strong Tags Relevancy	-0.13	289	4	23 %	81 %
129	Number of Instagram Pages Authority	-0.13	23	2	39 %	75 %
130	Headings Has Question Other	-0.13	1	1	35 %	78 %
131	Number of H4 Tags Size	-0.13	23	4	31 %	82 %
132	Entities in H4 Tags	-0.13	21	2	18 %	88 %
133	Search Result Uses HTTPS Other	-0.13	1	1	82 %	86 %
134	Exact Matches in Sentences Relevancy	-0.13	37	3	22 %	88 %
135	Has Meta Viewport Technology	-0.13	1	1	79 %	81 %
136	Has Canonical URL Authority	-0.13	1	1	68 %	77 %
137	Number of Prices Size	-0.13	565	101	66 %	82 %
138	Number of Social Pages Authority	-0.13	25	4	59 %	79 %
139	Number of Questions Size	-0.13	63	12	64 %	80 %
140	Number of Questions In H2 Tags Size	-0.13	3	1	22 %	79 %
141	Page Size Kilobytes Size	-0.13	748	341	81 %	77 %
142	Number of Social Accounts Authority	-0.13	8	2	37 %	80 %
143	Variations making whole A Tags Relevancy	-0.13	115	2	24 %	79 %
144	Variations Making Whole Span Tags Relevancy	-0.13	5	1	17 %	84 %
145	Uses JSON-LD url Other	-0.13	1	1	45 %	79 %
146	Number of Facebook Accounts Authority	-0.12	2	1	24 %	78 %
147	Meta Description Length Size	-0.12	456	117	64 %	78 %
148	Exact Matches in Top 30KB Relevancy	-0.12	14	2	17 %	84 %
149	Has OpenGraph Image Relevancy	-0.12	1	1	53 %	70 %
150	Word Count in Meta Description Size	-0.12	65	19	64 %	80 %
151	Number of Questions In H3 Tags Size	-0.12	4	1	17 %	79 %
152	Exact Matches in Title Tag Relevancy	-0.12	1	1	17 %	82 %
153	Has Terms of Service Trust	-0.12	1	1	41 %	72 %
154	Variations Making Whole LI Tags Relevancy	-0.12	7	1	19 %	81 %
155	Uses JSON-LD Organization Other	-0.12	1	1	29 %	73 %
156	Uses JSON-LD ListItem Other	-0.12	1	1	31 %	75 %
157	Uses JSON-LD description Other	-0.12	1	1	38 %	74 %
158	Uses JSON-LD sku Other	-0.12	1	1	5 %	24 %
159	Uses Schema organization Other	-0.12	1	1	31 %	74 %
160	Inline JavaScript Kilobytes Size	-0.12	534	142	76 %	68 %
161	Search Result Summary Length Size	-0.12	161	152	97 %	64 %
162	Uses Schema sku Other	-0.12	1	1	5 %	25 %
163	Variations in I Tags Relevancy	-0.12	568	7	18 %	77 %
164	Has Schema Markup Relevancy	-0.12	1	1	60 %	72 %
165	Variations in Button Tags Relevancy	-0.12	5433	39	11 %	85 %
166	Number of Twitter Accounts Authority	-0.12	5	1	19 %	72 %
167	Has Contact Page Trust	-0.12	1	1	59 %	74 %
168	Search Result URL Length Size	-0.12	93	62	96 %	59 %
169	Uses JSON-LD BreadcrumbList Other	-0.12	1	1	30 %	76 %
170	Has Meta Robots Other	-0.12	1	1	24 %	73 %
171	Variations in the last 100 words Relevancy	-0.12	176	5	43 %	79 %
172	Has Meta Description Relevancy	-0.12	1	1	63 %	76 %
173	Variations in TITLE Attributes Relevancy	-0.12	1571	11	32 %	80 %
174	Meta Description Tag Has Entities Relevancy	-0.12	1	1	55 %	82 %
175	Number Of Claimed Brands Other	-0.12	60	2	23 %	81 %
176	Leading Variations in H3 Tags Relevancy	-0.12	9	1	14 %	75 %
177	Number of H5 Tags Size	-0.12	6	2	15 %	78 %
178	Has Meta Twitter Card Authority	-0.12	1	1	51 %	64 %
179	Uses Schema product Other	-0.12	1	1	8 %	46 %
180	Has OpenGraph Type Relevancy	-0.12	1	1	59 %	75 %
181	Variations in H4-H6 Tags Relevancy	-0.12	40	2	15 %	76 %
182	Has Google Verify Technology	-0.12	1	1	18 %	71 %
183	Has FavIcon Technology	-0.12	1	1	73 %	75 %
184	Is Article Page Other	-0.12	1	1	39 %	69 %
185	Variations in Meta Twitter Content Relevancy	-0.12	12	1	27 %	72 %
186	Variations in ID Attributes Relevancy	-0.12	1696	14	15 %	84 %
187	Number of Nofollow Links Authority	-0.12	18	4	21 %	79 %
188	Exact Matches in H1 Tags Relevancy	-0.12	1	1	14 %	80 %
189	Uses JSON-LD Product Other	-0.12	1	1	7 %	47 %
190	Uses JSON-LD streetAddress Other	-0.12	1	1	15 %	60 %
191	Variations in Article Tags Relevancy	-0.11	3771	32	21 %	75 %
192	Uses Schema state Other	-0.11	1	1	3 %	17 %
193	Uses Schema name Other	-0.11	1	1	56 %	73 %
194	Uses JSON-LD GeoCoordinates Other	-0.11	1	1	11 %	42 %
195	Has Apple Touch Icon Technology	-0.11	1	1	48 %	70 %
196	Uses Schema geocoordinates Other	-0.11	1	1	12 %	42 %
197	Uses Schema streetaddress Other	-0.11	1	1	16 %	59 %
198	Uses Schema addresslocality Other	-0.11	1	1	17 %	60 %
199	Number of Email Addresses Trust	-0.11	15	4	39 %	80 %
200	Uses JSON-LD State Other	-0.11	1	1	3 %	17 %

Measures 150586 SEO Factors

148864 Built-In SEO Factors

139662 On-page SEO Factors

9202 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2026-05 previous