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	-0.25	844	295	83 %	83 %
2	Number of Top 100 Shared Factors Used Diversity	-0.23	38	28	98 %	97 %
3	Number of Top 200 Shared Factors Used Diversity	-0.23	51	37	98 %	97 %
4	Number of Top 50 Shared Factors Used Diversity	-0.23	16	12	96 %	97 %
5	Number of Unique Variations Used Diversity	-0.23	19	6	76 %	86 %
6	Number of Distinct Entities Used Diversity	-0.22	55	28	79 %	99 %
7	Entities in Sentences Relevancy	-0.22	1308	153	69 %	99 %
8	Entities in the HTML Tag Relevancy	-0.22	1436	157	74 %	99 %
9	Search Result Domain is .com, .net, or .org Other	-0.22	1	1	8 %	77 %
10	Variations in H1, H2, and H3 Tags Relevancy	-0.21	378	18	58 %	94 %
11	Variations in H1 and H2 Tags Relevancy	-0.21	287	10	57 %	95 %
12	Variations in P Tags Relevancy	-0.21	4557	211	60 %	97 %
13	Entities in H2 Tags	-0.21	46	7	49 %	99 %
14	Variations in Search Result Document File Name Relevancy	-0.21	8	2	43 %	85 %
15	Search Result Domain is .com Other	-0.21	1	1	7 %	77 %
16	Variations in H1-H6 Tags Relevancy	-0.21	409	20	59 %	96 %
17	Entities in H1 Tags	-0.21	4	2	50 %	87 %
18	Entities in H3 Tags	-0.21	40	8	42 %	97 %
19	Variations in Div Tags Relevancy	-0.2	68329	2102	68 %	93 %
20	Entities in Title Tag Relevancy	-0.2	7	3	64 %	94 %
21	Load Time Milliseconds Performance	-0.2	3860	1204	83 %	91 %
22	Variations in Search Result URL Path Relevancy	-0.2	10	2	45 %	86 %
23	Number of Factors Used Diversity	-0.2	271	171	98 %	93 %
24	Has Entities in H1 Tags Relevancy	-0.19	1	1	53 %	88 %
25	Variations in Main Tags Relevancy	-0.19	40166	1117	38 %	94 %
26	Variations in H2 Tags Relevancy	-0.19	280	9	43 %	91 %
27	Unabridged Word Count Size	-0.19	9873	1932	82 %	95 %
28	Word Count Size	-0.19	3327	1426	82 %	95 %
29	Variations in LI Tags Relevancy	-0.19	2914	144	58 %	93 %
30	Variations in Body Tags Relevancy	-0.19	93621	2059	74 %	91 %
31	Number of Heading Tags Size	-0.19	42	22	69 %	95 %
32	Number of P Tags Size	-0.19	114	39	68 %	96 %
33	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.19	32	3	41 %	88 %
34	LSI Words in Sentences Relevancy	-0.19	2378	753	62 %	98 %
35	Variations in HTML Tags Relevancy	-0.19	93621	2038	73 %	92 %
36	Number of Backlinks Authority	-0.19	109241	7438	53 %	74 %
37	Variations in Sentences Relevancy	-0.19	8372	296	67 %	95 %
38	Number of Images Size	-0.19	309	35	69 %	94 %
39	Clean Text Kilobytes Size	-0.19	54	13	68 %	95 %
40	Has Entities in H2 Tags Relevancy	-0.18	1	1	51 %	91 %
41	Number of Referring Domains Authority	-0.18	3169	173	53 %	76 %
42	Variations in H1 Tags Relevancy	-0.18	20	2	48 %	91 %
43	Variations in A Tags Relevancy	-0.18	9305	268	60 %	91 %
44	Number of HTML Tags Size	-0.18	2805	1087	82 %	89 %
45	Variations in A Tag HREF Attributes Relevancy	-0.18	2876	130	53 %	88 %
46	Number of Images with ALT Text Size	-0.18	304	25	63 %	91 %
47	Variations in the Canonical URL Relevancy	-0.18	50	4	47 %	83 %
48	Number of Internal Links Authority	-0.18	619	129	73 %	88 %
49	Leading Variations in H1-H6 Tags Relevancy	-0.18	36	3	42 %	89 %
50	Term Frequency Relevancy	-0.18	6	3	73 %	93 %
51	Variations in Distinct A Tag HREF Attributes Relevancy	-0.18	1808	84	54 %	91 %
52	Number of H1 Tags Size	-0.18	3	1	65 %	95 %
53	Number of Do Follow Backlinks Authority	-0.18	61547	5798	49 %	75 %
54	Number of H3 Tags Size	-0.18	18	9	55 %	87 %
55	Variations in the Title Tag Relevancy	-0.18	23	2	60 %	81 %
56	Number of Links Authority	-0.18	624	143	74 %	92 %
57	Search Result Number of Dirs in Path Other	-0.18	3	2	71 %	78 %
58	Number of HTTPS Links Authority	-0.18	623	142	74 %	92 %
59	Has Entities in H3 Tags Relevancy	-0.17	1	1	43 %	94 %
60	Variation Count in Top 30KB Relevancy	-0.17	4928	154	61 %	92 %
61	Variations in H3 Tags Relevancy	-0.17	123	8	34 %	87 %
62	Number of DoFollow Links Authority	-0.17	614	138	75 %	93 %
63	Number of H2 Tags Size	-0.17	23	7	62 %	95 %
64	Average Words Per Sentence Size	-0.17	172	31	73 %	86 %
65	Variations in Span Tags Relevancy	-0.17	1077	44	47 %	91 %
66	Variations in Search Result URL Relevancy	-0.17	21	3	56 %	82 %
67	Title Tag Has Entities Relevancy	-0.17	1	1	65 %	79 %
68	Leading Variations in H1 Tags Relevancy	-0.17	2	1	28 %	80 %
69	Clean Keyword Density in the HTML Tag Relevancy	-0.17	203	19	66 %	76 %
70	LSI Words in H2 Tags Relevancy	-0.17	91	22	51 %	99 %
71	Is Home Page Other	-0.17	1	1	22 %	31 %
72	Number of No Follow Backlinks Authority	-0.17	47695	1747	39 %	69 %
73	Entities in Meta Description Tag Relevancy	-0.16	19	3	57 %	88 %
74	Number of HTML Comments Size	-0.16	166	46	64 %	86 %
75	Variations in Search Result Display URL Relevancy	-0.16	19	2	77 %	78 %
76	Variations in Search Result Link Text Relevancy	-0.16	19	2	77 %	78 %
77	Number of External Links Authority	-0.16	32	15	71 %	89 %
78	Variations in Section Tags Relevancy	-0.16	1250	66	35 %	93 %
79	Variations in First 100 Words Relevancy	-0.16	177	13	59 %	84 %
80	Variations in OpenGraph Description Relevancy	-0.16	45	4	46 %	77 %
81	Number of DoFollow External Links Authority	-0.16	28	13	70 %	89 %
82	LSI Words in H1 Tags Relevancy	-0.16	10	4	51 %	96 %
83	Number of Facebook Pages Authority	-0.16	4	2	52 %	80 %
84	Variations in OpenGraph Title Relevancy	-0.16	16	2	52 %	84 %
85	Flesch Kincaid Reading Grade Level Other	-0.16	5	0	93 %	89 %
86	Variations in Absolute URLs Relevancy	-0.16	14393	531	57 %	92 %
87	Variations in Meta Description Relevancy	-0.16	49	3	51 %	78 %
88	Title Word Count Size	-0.16	17	8	80 %	73 %
89	Variation Density in Top 30KB Relevancy	-0.16	310	23	60 %	86 %
90	Number of Images without ALT Text Size	-0.16	32	11	52 %	95 %
91	TF/IDF Relevancy	-0.16	2	1	57 %	92 %
92	Variations in ALT Attributes Relevancy	-0.16	588	17	41 %	89 %
93	Number of Sentences Size	-0.16	332	145	78 %	87 %
94	Number Of JSON-LD Types Relevancy	-0.16	55	12	51 %	89 %
95	Number of Questions In Headings Size	-0.15	6	2	32 %	85 %
96	Has US Phone Number Trust	-0.15	1	1	34 %	68 %
97	Search Result Uses HTTPS Other	-0.15	1	1	82 %	85 %
98	Search Result Domain Length Size	-0.15	22	16	82 %	83 %
99	Search Result Host Length Size	-0.15	22	16	82 %	83 %
100	Percentage of DoFollow Links Authority	-0.15	96	77	75 %	94 %
101	LSI Words in Title Tag Relevancy	-0.15	13	5	65 %	93 %
102	LSI Words in Meta Description Tag Relevancy	-0.15	23	10	52 %	87 %
103	LSI Words in H3 Tags Relevancy	-0.15	97	24	45 %	94 %
104	Exact Matches in the HTML Tag Relevancy	-0.15	242	16	33 %	89 %
105	Title Length Size	-0.15	98	50	80 %	74 %
106	Leading Variations in H2 Tags Relevancy	-0.15	22	2	23 %	85 %
107	Number of Forms Technology	-0.15	10	2	48 %	83 %
108	Inline CSS Kilobytes Size	-0.15	189	59	63 %	85 %
109	Has Canonical URL Authority	-0.15	1	1	68 %	81 %
110	Number of US Phone Numbers Trust	-0.15	249	13	31 %	79 %
111	Exact Matches in H1-H6 Tags Relevancy	-0.15	8	2	21 %	85 %
112	Variations in Script Tags Relevancy	-0.15	52712	1475	61 %	81 %
113	Has Meta Charset Technology	-0.15	1	1	70 %	86 %
114	Variations in Nav Tags Relevancy	-0.15	7034	331	42 %	88 %
115	Number of Includes Technology	-0.15	68	27	77 %	75 %
116	Has Privacy Policy Trust	-0.15	1	1	59 %	73 %
117	Leading Variations in Title Tag Relevancy	-0.15	1	1	31 %	88 %
118	Exact Matches in Sentences Relevancy	-0.15	37	4	25 %	88 %
119	Entities in H4 Tags	-0.14	21	2	19 %	91 %
120	Has Terms of Service Trust	-0.14	1	1	42 %	64 %
121	Has JSON-LD Schema Markup Relevancy	-0.14	1	1	49 %	89 %
122	Variations in Footer Tags Relevancy	-0.14	6817	165	32 %	81 %
123	Number of JavaScript Includes Technology	-0.14	46	18	77 %	78 %
124	Uses JSON-LD description Other	-0.14	1	1	36 %	80 %
125	Meta Description Length Size	-0.14	178	113	64 %	74 %
126	Uses JSON-LD name Other	-0.14	1	1	48 %	87 %
127	Uses JSON-LD ListItem Other	-0.14	1	1	30 %	76 %
128	Percentage of DoFollow External Links Authority	-0.14	20	11	68 %	82 %
129	Word Count in Meta Description Size	-0.14	28	19	65 %	79 %
130	Number of Absolute URLs Authority	-0.14	617	281	82 %	85 %
131	Uses Schema product Other	-0.14	1	1	12 %	51 %
132	Percentage of DoFollow Internal Links Authority	-0.14	88	66	73 %	88 %
133	Has Form Technology	-0.14	1	1	47 %	81 %
134	Has Meta Viewport Technology	-0.14	1	1	78 %	79 %
135	Uses Schema brand Other	-0.14	1	1	9 %	41 %
136	Variations in Strong Tags Relevancy	-0.14	289	10	24 %	83 %
137	Uses JSON-LD BreadcrumbList Other	-0.14	1	1	29 %	78 %
138	Headings Has Question Other	-0.14	1	1	33 %	84 %
139	Number of Social Accounts Authority	-0.14	8	2	37 %	86 %
140	Number of H4 Tags Size	-0.14	23	4	32 %	81 %
141	Number of CSS Includes Technology	-0.14	22	9	70 %	71 %
142	Number of Questions In H3 Tags Size	-0.14	4	1	17 %	79 %
143	Meta Description Tag Has Entities Relevancy	-0.14	1	1	58 %	81 %
144	Leading Variations in H3 Tags Relevancy	-0.14	9	2	16 %	79 %
145	Variations making whole A Tags Relevancy	-0.14	115	5	27 %	80 %
146	Number of Questions In H2 Tags Size	-0.14	2	1	22 %	83 %
147	Uses JSON-LD latitude Other	-0.14	1	1	8 %	32 %
148	Uses JSON-LD longitude Other	-0.14	1	1	8 %	32 %
149	Number of Prices Size	-0.14	453	114	65 %	74 %
150	Uses Schema latitude Other	-0.14	1	1	9 %	31 %
151	Uses Schema longitude Other	-0.14	1	1	9 %	31 %
152	Has OpenGraph Image Relevancy	-0.14	1	1	54 %	77 %
153	Exact Matches in Top 30KB Relevancy	-0.14	14	2	20 %	82 %
154	Uses Schema sku Other	-0.13	1	1	8 %	27 %
155	Page Size Kilobytes Size	-0.13	748	361	82 %	71 %
156	Number of Instagram Pages Authority	-0.13	23	2	41 %	76 %
157	Variations Making Whole Span Tags Relevancy	-0.13	4	1	18 %	83 %
158	Variations in Article Tags Relevancy	-0.13	3771	96	20 %	82 %
159	Has Meta Description Relevancy	-0.13	1	1	63 %	74 %
160	Has Schema Markup Relevancy	-0.13	1	1	60 %	78 %
161	Number of Social Pages Authority	-0.13	25	4	58 %	80 %
162	Is Article Page Other	-0.13	1	1	38 %	75 %
163	Number of LinkedIn Pages Authority	-0.13	8	1	27 %	76 %
164	Uses JSON-LD Product Other	-0.13	1	1	10 %	53 %
165	Variations making whole H1-H6 Tags Relevancy	-0.13	3	1	15 %	80 %
166	Uses JSON-LD Organization Other	-0.13	1	1	29 %	83 %
167	Uses JSON-LD headline Other	-0.13	1	1	18 %	59 %
168	Number of NoFollow External Links Authority	-0.13	10	3	14 %	81 %
169	Uses JSON-LD GeoCoordinates Other	-0.13	1	1	14 %	36 %
170	Search Result Summary Length Size	-0.13	160	152	97 %	58 %
171	Number of Nofollow Links Authority	-0.13	15	4	22 %	85 %
172	Has Contact Page Trust	-0.13	1	1	60 %	73 %
173	Uses Schema name Other	-0.13	1	1	56 %	79 %
174	Number of Questions Size	-0.13	38	12	63 %	85 %
175	Uses Schema geocoordinates Other	-0.13	1	1	14 %	35 %
176	Variations making whole H1, H2, and H3 Tags Relevancy	-0.13	3	1	14 %	80 %
177	Uses JSON-LD url Other	-0.13	1	1	43 %	83 %
178	Uses Schema description Other	-0.13	1	1	44 %	71 %
179	Variations in B Tags Relevancy	-0.13	204	10	11 %	83 %
180	Variations in ID Attributes Relevancy	-0.13	1696	55	20 %	85 %
181	Uses Schema pricespecification Other	-0.13	1	1	2 %	17 %
182	Uses Schema reviewaspect Other	-0.13	1	1	1 %	13 %
183	Variations Making Whole LI Tags Relevancy	-0.13	3	1	20 %	82 %
184	Number of Facebook Accounts Authority	-0.13	2	1	25 %	74 %
185	Variations in I Tags Relevancy	-0.13	568	19	19 %	79 %
186	Uses JSON-LD sku Other	-0.13	1	1	7 %	28 %
187	Has FavIcon Technology	-0.13	1	1	72 %	76 %
188	Uses Schema aggregaterating Other	-0.13	1	1	9 %	65 %
189	Uses Schema url Other	-0.13	1	1	50 %	72 %
190	Uses JSON-LD SeekToAction Other	-0.13	1	1	1 %	15 %
191	Uses Schema seektoaction Other	-0.13	1	1	1 %	15 %
192	Uses Schema paymentaccepted Other	-0.13	1	1	5 %	16 %
193	Variations in TITLE Attributes Relevancy	-0.13	1571	30	35 %	83 %
194	Exact Matches in Title Tag Relevancy	-0.13	1	1	17 %	83 %
195	Uses Schema organization Other	-0.13	1	1	32 %	82 %
196	Uses JSON-LD PriceSpecification Other	-0.13	1	1	2 %	16 %
197	Variations in Button Tags Relevancy	-0.12	5433	159	16 %	86 %
198	Uses JSON-LD about Other	-0.12	1	1	1 %	12 %
199	Uses JSON-LD reviewAspect Other	-0.12	1	1	1 %	12 %
200	Uses JSON-LD paymentAccepted Other	-0.12	1	1	5 %	16 %

Measures 150523 SEO Factors

148801 Built-In SEO Factors

139599 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