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	-0.24	951	296	82 %	80 %
2	Search Result Domain is .com, .net, or .org Other	-0.23	1	1	6 %	82 %
3	Search Result Domain is .com Other	-0.22	1	1	6 %	82 %
4	Load Time Milliseconds Performance	-0.22	29874	1345	82 %	93 %
5	Number of Top 200 Shared Factors Used Diversity	-0.22	51	37	97 %	95 %
6	Number of Top 100 Shared Factors Used Diversity	-0.21	38	28	97 %	96 %
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	10	57 %	90 %
9	Number of Distinct Entities Used Diversity	-0.2	59	29	77 %	97 %
10	Variations in H1-H6 Tags Relevancy	-0.2	409	12	58 %	91 %
11	Number of Unique Variations Used Diversity	-0.2	19	6	74 %	91 %
12	Entities in Sentences Relevancy	-0.2	1308	144	66 %	95 %
13	Entities in Title Tag Relevancy	-0.19	7	3	65 %	94 %
14	Variations in H1 and H2 Tags Relevancy	-0.19	287	6	55 %	93 %
15	Entities in the HTML Tag Relevancy	-0.19	1436	146	71 %	96 %
16	Variations in P Tags Relevancy	-0.19	4557	97	60 %	93 %
17	Variations in Search Result Document File Name Relevancy	-0.19	8	1	42 %	84 %
18	Number of Backlinks Authority	-0.19	382197	15916	50 %	74 %
19	Entities in H2 Tags	-0.19	46	7	50 %	97 %
20	Number of Referring Domains Authority	-0.19	3169	226	50 %	75 %
21	Variations in Div Tags Relevancy	-0.19	68329	836	69 %	91 %
22	Entities in H1 Tags	-0.19	5	2	50 %	89 %
23	Number of Factors Used Diversity	-0.18	271	169	97 %	90 %
24	Variations in Body Tags Relevancy	-0.18	93621	900	73 %	90 %
25	Word Count Size	-0.18	4408	1414	82 %	90 %
26	Variations in HTML Tags Relevancy	-0.18	93621	894	73 %	91 %
27	Unabridged Word Count Size	-0.18	10152	1859	82 %	90 %
28	Entities in H3 Tags	-0.18	40	7	42 %	93 %
29	Number of Heading Tags Size	-0.18	45	21	68 %	89 %
30	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	32	2	39 %	86 %
31	Clean Text Kilobytes Size	-0.18	56	12	69 %	89 %
32	Variations in Search Result URL Path Relevancy	-0.18	10	2	43 %	85 %
33	Variations in LI Tags Relevancy	-0.18	2914	67	57 %	88 %
34	LSI Words in Sentences Relevancy	-0.18	2378	710	60 %	96 %
35	Number of Do Follow Backlinks Authority	-0.18	377721	13595	46 %	75 %
36	Variations in H1 Tags Relevancy	-0.18	20	1	48 %	87 %
37	Leading Variations in H1-H6 Tags Relevancy	-0.18	36	2	40 %	86 %
38	Number of No Follow Backlinks Authority	-0.17	61104	2675	38 %	70 %
39	Number of P Tags Size	-0.17	114	38	68 %	90 %
40	Number of H2 Tags Size	-0.17	23	7	61 %	91 %
41	Variations in H2 Tags Relevancy	-0.17	280	5	42 %	91 %
42	Term Frequency Relevancy	-0.17	6	3	73 %	91 %
43	Number of HTML Tags Size	-0.17	2805	1036	82 %	88 %
44	Variations in Sentences Relevancy	-0.17	8372	133	67 %	93 %
45	Variations in A Tags Relevancy	-0.17	9305	114	58 %	87 %
46	Number of H1 Tags Size	-0.17	3	1	65 %	91 %
47	Number of Images Size	-0.17	309	31	69 %	91 %
48	Has Entities in H1 Tags Relevancy	-0.17	1	1	52 %	87 %
49	Number of Links Authority	-0.17	624	137	74 %	89 %
50	Number of HTTPS Links Authority	-0.17	623	136	74 %	88 %
51	Variation Count in Top 30KB Relevancy	-0.17	4928	69	61 %	90 %
52	Number of DoFollow Links Authority	-0.17	614	134	74 %	89 %
53	Variations in A Tag HREF Attributes Relevancy	-0.17	2876	71	53 %	88 %
54	Variations in the Title Tag Relevancy	-0.17	23	2	61 %	85 %
55	Number of Internal Links Authority	-0.17	619	123	73 %	87 %
56	Variations in Main Tags Relevancy	-0.17	40166	472	36 %	87 %
57	Variations in Search Result Display URL Relevancy	-0.16	19	2	75 %	78 %
58	Variations in Search Result Link Text Relevancy	-0.16	19	2	75 %	78 %
59	Variations in Distinct A Tag HREF Attributes Relevancy	-0.16	1808	46	53 %	88 %
60	Number of Images with ALT Text Size	-0.16	304	22	63 %	89 %
61	Number of H3 Tags Size	-0.16	26	9	54 %	82 %
62	Variations in Search Result URL Relevancy	-0.16	21	2	53 %	78 %
63	Variations in the Canonical URL Relevancy	-0.16	50	2	45 %	84 %
64	Has Entities in H2 Tags Relevancy	-0.16	1	1	51 %	89 %
65	Variations in First 100 Words Relevancy	-0.16	177	8	59 %	85 %
66	LSI Words in H2 Tags Relevancy	-0.16	91	20	51 %	96 %
67	Variations in Span Tags Relevancy	-0.16	1077	22	45 %	87 %
68	Search Result Number of Dirs in Path Other	-0.16	3	2	71 %	78 %
69	Number of External Links Authority	-0.16	41	15	71 %	88 %
70	Average Words Per Sentence Size	-0.16	172	30	73 %	84 %
71	Number of DoFollow External Links Authority	-0.16	40	14	70 %	87 %
72	Variations in Absolute URLs Relevancy	-0.16	14393	229	57 %	89 %
73	Clean Keyword Density in the HTML Tag Relevancy	-0.16	203	9	66 %	78 %
74	LSI Words in H1 Tags Relevancy	-0.16	10	4	52 %	94 %
75	Variation Density in Top 30KB Relevancy	-0.16	310	10	58 %	79 %
76	Variations in H3 Tags Relevancy	-0.15	123	5	33 %	85 %
77	LSI Words in Title Tag Relevancy	-0.15	15	5	64 %	91 %
78	Leading Variations in H1 Tags Relevancy	-0.15	2	1	25 %	80 %
79	Number of Images without ALT Text Size	-0.15	32	10	52 %	88 %
80	Entities in Meta Description Tag Relevancy	-0.15	19	3	56 %	90 %
81	Number of HTML Comments Size	-0.15	441	47	65 %	87 %
82	Exact Matches in the HTML Tag Relevancy	-0.15	242	11	31 %	88 %
83	Number of Facebook Pages Authority	-0.15	4	2	50 %	81 %
84	Percentage of DoFollow Links Authority	-0.15	99	79	74 %	91 %
85	Variations in Script Tags Relevancy	-0.15	52712	557	61 %	87 %
86	Number Of JSON-LD Types Relevancy	-0.15	63	13	52 %	85 %
87	Number of Sentences Size	-0.15	612	150	78 %	86 %
88	Variations in OpenGraph Title Relevancy	-0.15	16	2	53 %	84 %
89	TF/IDF Relevancy	-0.15	2	1	55 %	88 %
90	Number of Includes Technology	-0.15	68	26	77 %	78 %
91	Variations in Section Tags Relevancy	-0.15	1250	35	35 %	91 %
92	Has Entities in H3 Tags Relevancy	-0.15	1	1	43 %	86 %
93	Variations in ALT Attributes Relevancy	-0.15	588	10	40 %	89 %
94	Number of US Phone Numbers Trust	-0.15	249	11	35 %	82 %
95	Flesch Kincaid Reading Grade Level Other	-0.15	6	1	92 %	85 %
96	Title Tag Has Entities Relevancy	-0.15	1	1	65 %	85 %
97	Exact Matches in H1-H6 Tags Relevancy	-0.15	8	1	19 %	85 %
98	Variations in Meta Description Relevancy	-0.15	49	2	51 %	84 %
99	Variations in OpenGraph Description Relevancy	-0.15	45	2	46 %	79 %
100	Leading Variations in Title Tag Relevancy	-0.15	1	1	28 %	81 %
101	Leading Variations in H2 Tags Relevancy	-0.14	22	1	20 %	84 %
102	Percentage of DoFollow Internal Links Authority	-0.14	92	68	73 %	84 %
103	Percentage of DoFollow External Links Authority	-0.14	25	12	69 %	82 %
104	Has Privacy Policy Trust	-0.14	1	1	58 %	76 %
105	Number of Forms Technology	-0.14	10	2	45 %	83 %
106	Number of Questions In Headings Size	-0.14	6	2	33 %	83 %
107	Has JSON-LD Schema Markup Relevancy	-0.14	1	1	50 %	82 %
108	LSI Words in H3 Tags Relevancy	-0.14	97	22	44 %	88 %
109	Variations in Nav Tags Relevancy	-0.14	7034	142	41 %	85 %
110	Title Length Size	-0.14	100	51	79 %	75 %
111	Title Word Count Size	-0.14	28	8	79 %	75 %
112	Is Home Page Other	-0.14	1	1	18 %	39 %
113	Number of JavaScript Includes Technology	-0.14	46	18	77 %	77 %
114	Inline CSS Kilobytes Size	-0.14	189	60	62 %	84 %
115	Has US Phone Number Trust	-0.14	1	1	35 %	74 %
116	LSI Words in Meta Description Tag Relevancy	-0.14	23	10	53 %	91 %
117	Variations making whole H1-H6 Tags Relevancy	-0.14	3	1	14 %	75 %
118	Number of LinkedIn Pages Authority	-0.14	8	1	30 %	81 %
119	Has Meta Charset Technology	-0.14	1	1	71 %	83 %
120	Search Result Domain Length Size	-0.14	23	16	81 %	79 %
121	Search Result Host Length Size	-0.14	23	16	81 %	79 %
122	Exact Matches in Sentences Relevancy	-0.14	37	3	22 %	88 %
123	Has Form Technology	-0.14	1	1	44 %	79 %
124	Number of CSS Includes Technology	-0.14	22	9	70 %	76 %
125	Variations making whole H1, H2, and H3 Tags Relevancy	-0.14	3	1	12 %	75 %
126	Search Result Uses HTTPS Other	-0.14	1	1	82 %	85 %
127	Variations making whole A Tags Relevancy	-0.14	115	3	25 %	78 %
128	Variations in Strong Tags Relevancy	-0.14	289	5	23 %	79 %
129	Number of Social Accounts Authority	-0.14	8	2	36 %	84 %
130	Uses JSON-LD name Other	-0.13	1	1	49 %	81 %
131	Variations in Footer Tags Relevancy	-0.13	6817	65	33 %	82 %
132	Headings Has Question Other	-0.13	1	1	34 %	78 %
133	Has OpenGraph Image Relevancy	-0.13	1	1	52 %	69 %
134	Has Meta Viewport Technology	-0.13	1	1	79 %	80 %
135	Number of Instagram Pages Authority	-0.13	23	2	38 %	76 %
136	Number of Social Pages Authority	-0.13	25	4	58 %	81 %
137	Meta Description Length Size	-0.13	203	115	64 %	78 %
138	Entities in H4 Tags	-0.13	21	2	18 %	89 %
139	Number of Absolute URLs Authority	-0.13	861	274	81 %	84 %
140	Has Canonical URL Authority	-0.13	1	1	68 %	81 %
141	Number of Facebook Accounts Authority	-0.13	2	1	23 %	79 %
142	Exact Matches in Title Tag Relevancy	-0.13	1	1	17 %	82 %
143	Exact Matches in Top 30KB Relevancy	-0.13	14	2	17 %	86 %
144	Has Terms of Service Trust	-0.13	1	1	42 %	75 %
145	Word Count in Meta Description Size	-0.13	47	19	64 %	81 %
146	Number of H4 Tags Size	-0.13	23	3	31 %	82 %
147	Number of Questions In H2 Tags Size	-0.13	3	1	22 %	79 %
148	Variations Making Whole Span Tags Relevancy	-0.13	4	1	17 %	85 %
149	Page Size Kilobytes Size	-0.13	748	347	81 %	74 %
150	Leading Variations in H3 Tags Relevancy	-0.13	9	1	15 %	73 %
151	Number of Prices Size	-0.13	456	106	65 %	82 %
152	Number of Questions Size	-0.13	63	13	63 %	81 %
153	Number of Questions In H3 Tags Size	-0.13	4	1	17 %	78 %
154	Uses JSON-LD url Other	-0.12	1	1	44 %	78 %
155	Variations in Button Tags Relevancy	-0.12	5433	59	13 %	85 %
156	Number Of Claimed Brands Other	-0.12	60	2	23 %	84 %
157	Variations Making Whole LI Tags Relevancy	-0.12	5	1	19 %	80 %
158	Exact Matches in H1 Tags Relevancy	-0.12	1	1	14 %	78 %
159	Uses JSON-LD description Other	-0.12	1	1	37 %	75 %
160	Uses Schema brand Other	-0.12	1	1	6 %	42 %
161	Variations in ID Attributes Relevancy	-0.12	1696	22	16 %	82 %
162	Uses JSON-LD GeoCoordinates Other	-0.12	1	1	12 %	41 %
163	Has Meta Robots Other	-0.12	1	1	24 %	72 %
164	Uses JSON-LD Organization Other	-0.12	1	1	29 %	75 %
165	Uses JSON-LD ListItem Other	-0.12	1	1	30 %	74 %
166	Has Google Verify Technology	-0.12	1	1	18 %	71 %
167	Has Schema Markup Relevancy	-0.12	1	1	60 %	73 %
168	Has Meta Description Relevancy	-0.12	1	1	63 %	75 %
169	Number of Twitter Accounts Authority	-0.12	5	1	20 %	77 %
170	Meta Description Tag Has Entities Relevancy	-0.12	1	1	57 %	81 %
171	Uses Schema latitude Other	-0.12	1	1	8 %	31 %
172	Uses Schema longitude Other	-0.12	1	1	8 %	31 %
173	Uses Schema product Other	-0.12	1	1	9 %	46 %
174	Uses Schema sku Other	-0.12	1	1	6 %	22 %
175	Uses JSON-LD latitude Other	-0.12	1	1	8 %	31 %
176	Uses JSON-LD longitude Other	-0.12	1	1	8 %	31 %
177	Uses Schema geocoordinates Other	-0.12	1	1	12 %	41 %
178	Number of H5 Tags Size	-0.12	6	2	15 %	76 %
179	Exact Matches in H2 Tags Relevancy	-0.12	4	1	11 %	85 %
180	Uses JSON-LD BreadcrumbList Other	-0.12	1	1	30 %	75 %
181	Search Result Summary Length Size	-0.12	160	152	97 %	64 %
182	Variations in Article Tags Relevancy	-0.12	3771	46	20 %	73 %
183	Variations in the last 100 words Relevancy	-0.12	176	6	43 %	76 %
184	Search Result URL Length Size	-0.12	93	61	95 %	59 %
185	Uses Schema organization Other	-0.12	1	1	31 %	75 %
186	Has Contact Page Trust	-0.12	1	1	58 %	72 %
187	Number of Nofollow Links Authority	-0.12	18	4	21 %	79 %
188	Variations in H4-H6 Tags Relevancy	-0.12	40	2	15 %	75 %
189	Uses JSON-LD sku Other	-0.12	1	1	6 %	21 %
190	Has Meta Twitter Card Authority	-0.12	1	1	50 %	66 %
191	Number of Email Addresses Trust	-0.12	13	4	39 %	78 %
192	Inline JavaScript Kilobytes Size	-0.12	534	144	76 %	67 %
193	Is Article Page Other	-0.12	1	1	38 %	68 %
194	Has OpenGraph Type Relevancy	-0.12	1	1	58 %	78 %
195	Uses JSON-LD logo Other	-0.12	1	1	11 %	63 %
196	Uses JSON-LD Product Other	-0.12	1	1	8 %	46 %
197	Variations in I Tags Relevancy	-0.12	568	9	17 %	75 %
198	Uses Schema name Other	-0.12	1	1	56 %	74 %
199	Exact Matches in A Tags Relevancy	-0.11	22	2	14 %	82 %
200	Variations in Meta Twitter Content Relevancy	-0.11	12	1	28 %	72 %

Measures 150548 SEO Factors

148826 Built-In SEO Factors

139624 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