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	975	288	81 %	75 %
2	Search Result Domain is .com, .net, or .org Other	-0.22	1	1	6 %	83 %
3	Load Time Milliseconds Performance	-0.22	29874	1433	82 %	93 %
4	Number of Top 200 Shared Factors Used Diversity	-0.22	51	36	97 %	94 %
5	Number of Top 100 Shared Factors Used Diversity	-0.22	38	27	96 %	95 %
6	Search Result Domain is .com Other	-0.22	1	1	6 %	83 %
7	Number of Top 50 Shared Factors Used Diversity	-0.22	16	11	96 %	93 %
8	Variations in H1, H2, and H3 Tags Relevancy	-0.2	378	8	54 %	90 %
9	Variations in H1-H6 Tags Relevancy	-0.2	409	9	55 %	90 %
10	Number of Unique Variations Used Diversity	-0.2	20	6	73 %	91 %
11	Variations in H1 and H2 Tags Relevancy	-0.2	287	5	53 %	90 %
12	Variations in Div Tags Relevancy	-0.19	68329	425	66 %	92 %
13	Variations in P Tags Relevancy	-0.19	4557	60	57 %	92 %
14	Word Count Size	-0.19	6928	1481	82 %	92 %
15	Number of Heading Tags Size	-0.19	49	20	68 %	89 %
16	Unabridged Word Count Size	-0.19	10152	1901	82 %	92 %
17	Number of P Tags Size	-0.19	123	38	67 %	90 %
18	Number of Backlinks Authority	-0.19	382197	8357	47 %	77 %
19	Number of Referring Domains Authority	-0.19	3169	134	46 %	77 %
20	Clean Text Kilobytes Size	-0.19	67	13	68 %	91 %
21	Variations in LI Tags Relevancy	-0.19	15771	61	55 %	89 %
22	Number of Images Size	-0.18	309	28	68 %	91 %
23	Number of H2 Tags Size	-0.18	23	7	61 %	90 %
24	Number of Factors Used Diversity	-0.18	272	168	97 %	91 %
25	Variations in Body Tags Relevancy	-0.18	93621	603	71 %	90 %
26	Variations in HTML Tags Relevancy	-0.18	93621	597	70 %	91 %
27	Number of H1 Tags Size	-0.18	3	1	64 %	92 %
28	Number of HTML Tags Size	-0.18	2805	1004	82 %	90 %
29	Variations in Search Result Document File Name Relevancy	-0.18	8	1	39 %	85 %
30	Number of Do Follow Backlinks Authority	-0.18	377721	7227	43 %	76 %
31	Variations in H1 Tags Relevancy	-0.18	20	1	46 %	85 %
32	Number of Distinct Entities Used Diversity	-0.18	61	25	70 %	95 %
33	Number of Images with ALT Text Size	-0.18	304	19	63 %	90 %
34	Variations in H2 Tags Relevancy	-0.18	280	4	40 %	88 %
35	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	32	2	36 %	85 %
36	Entities in Title Tag Relevancy	-0.18	7	2	58 %	93 %
37	Number of No Follow Backlinks Authority	-0.18	61104	1330	34 %	72 %
38	Entities in Sentences Relevancy	-0.17	1308	126	59 %	96 %
39	Number of DoFollow Links Authority	-0.17	614	128	75 %	89 %
40	Entities in H2 Tags	-0.17	46	6	44 %	95 %
41	Leading Variations in H1-H6 Tags Relevancy	-0.17	36	2	38 %	87 %
42	Variation Count in Top 30KB Relevancy	-0.17	4928	43	58 %	89 %
43	Number of HTTPS Links Authority	-0.17	623	130	74 %	89 %
44	Number of Links Authority	-0.17	624	131	75 %	90 %
45	Entities in the HTML Tag Relevancy	-0.17	1436	128	64 %	96 %
46	Number of Internal Links Authority	-0.17	619	118	74 %	89 %
47	Search Result Number of Dirs in Path Other	-0.17	3	2	73 %	81 %
48	Term Frequency Relevancy	-0.17	6	3	70 %	89 %
49	Entities in H1 Tags	-0.17	5	2	45 %	92 %
50	Variations in Sentences Relevancy	-0.17	8372	83	65 %	90 %
51	Variations in A Tags Relevancy	-0.17	9305	59	55 %	88 %
52	Variations in Search Result URL Path Relevancy	-0.17	10	1	41 %	85 %
53	LSI Words in Sentences Relevancy	-0.17	2566	667	56 %	96 %
54	Number of Includes Technology	-0.17	68	25	76 %	80 %
55	Number of H3 Tags Size	-0.17	26	8	54 %	86 %
56	Variations in Search Result Link Text Relevancy	-0.17	19	2	73 %	78 %
57	Variations in Search Result Display URL Relevancy	-0.17	19	2	73 %	78 %
58	Average Words Per Sentence Size	-0.16	372	29	72 %	86 %
59	Variations in the Title Tag Relevancy	-0.16	23	2	59 %	83 %
60	Number of DoFollow External Links Authority	-0.16	60	13	70 %	88 %
61	Number of External Links Authority	-0.16	60	14	71 %	89 %
62	Number of HTML Comments Size	-0.16	521	47	64 %	88 %
63	Entities in H3 Tags	-0.16	40	6	37 %	93 %
64	Number of Images without ALT Text Size	-0.16	34	9	51 %	87 %
65	Number of Facebook Pages Authority	-0.16	6	2	51 %	84 %
66	Variations in Span Tags Relevancy	-0.16	1077	14	42 %	89 %
67	Number Of JSON-LD Types Relevancy	-0.16	63	14	51 %	85 %
68	Variations in Main Tags Relevancy	-0.16	40166	227	34 %	88 %
69	Has JSON-LD Schema Markup Relevancy	-0.16	1	1	49 %	83 %
70	LSI Words in H2 Tags Relevancy	-0.16	91	18	46 %	94 %
71	Has Meta Charset Technology	-0.16	1	1	69 %	85 %
72	Variations in A Tag HREF Attributes Relevancy	-0.16	2876	47	49 %	90 %
73	Variations in Distinct A Tag HREF Attributes Relevancy	-0.15	1808	30	49 %	90 %
74	Variations in ALT Attributes Relevancy	-0.15	588	7	37 %	87 %
75	Leading Variations in H1 Tags Relevancy	-0.15	2	1	23 %	80 %
76	Variations in Search Result URL Relevancy	-0.15	21	2	49 %	82 %
77	LSI Words in H1 Tags Relevancy	-0.15	10	4	47 %	95 %
78	Flesch Kincaid Reading Grade Level Other	-0.15	6	1	92 %	87 %
79	Variations in the Canonical URL Relevancy	-0.15	50	2	42 %	84 %
80	Variations in Section Tags Relevancy	-0.15	1250	23	32 %	90 %
81	Number of Sentences Size	-0.15	673	150	78 %	87 %
82	Has Entities in H1 Tags Relevancy	-0.15	1	1	45 %	89 %
83	Variations in Absolute URLs Relevancy	-0.15	14393	127	53 %	90 %
84	Exact Matches in the HTML Tag Relevancy	-0.15	301	11	29 %	88 %
85	Variations in First 100 Words Relevancy	-0.15	177	6	56 %	86 %
86	Leading Variations in Title Tag Relevancy	-0.15	1	1	27 %	79 %
87	Variations in H3 Tags Relevancy	-0.15	123	3	31 %	85 %
88	Variations in Script Tags Relevancy	-0.15	52712	316	58 %	85 %
89	Percentage of DoFollow Links Authority	-0.15	99	79	75 %	90 %
90	Has Entities in H2 Tags Relevancy	-0.15	1	1	45 %	90 %
91	Variations in OpenGraph Title Relevancy	-0.15	16	1	50 %	80 %
92	Number of JavaScript Includes Technology	-0.15	46	17	77 %	78 %
93	Number of Forms Technology	-0.15	10	2	45 %	83 %
94	Variations in Nav Tags Relevancy	-0.15	7034	73	40 %	86 %
95	Number of CSS Includes Technology	-0.15	22	9	69 %	78 %
96	Number of Questions In Headings Size	-0.15	7	2	34 %	84 %
97	Percentage of DoFollow Internal Links Authority	-0.14	92	68	73 %	84 %
98	Number of LinkedIn Pages Authority	-0.14	8	1	28 %	79 %
99	Variations in Meta Description Relevancy	-0.14	49	2	49 %	81 %
100	Percentage of DoFollow External Links Authority	-0.14	25	12	69 %	81 %
101	Number of US Phone Numbers Trust	-0.14	249	9	33 %	84 %
102	LSI Words in Title Tag Relevancy	-0.14	15	5	59 %	90 %
103	Clean Keyword Density in the HTML Tag Relevancy	-0.14	203	6	62 %	77 %
104	Search Result Host Length Size	-0.14	24	16	81 %	81 %
105	Uses JSON-LD name Other	-0.14	1	1	48 %	81 %
106	Number of Instagram Pages Authority	-0.14	23	2	39 %	77 %
107	Search Result Domain Length Size	-0.14	24	16	81 %	81 %
108	Variations in OpenGraph Description Relevancy	-0.14	45	2	45 %	79 %
109	Has US Phone Number Trust	-0.14	1	1	34 %	75 %
110	Is Home Page Other	-0.14	1	1	17 %	41 %
111	Has Privacy Policy Trust	-0.14	1	1	55 %	74 %
112	Exact Matches in H1-H6 Tags Relevancy	-0.14	8	1	18 %	87 %
113	Leading Variations in H2 Tags Relevancy	-0.14	22	1	19 %	85 %
114	Has Form Technology	-0.14	1	1	44 %	79 %
115	TF/IDF Relevancy	-0.14	2	1	52 %	87 %
116	Entities in Meta Description Tag Relevancy	-0.14	19	3	51 %	90 %
117	Number of Social Accounts Authority	-0.14	8	2	37 %	83 %
118	Number of Facebook Accounts Authority	-0.14	2	1	24 %	80 %
119	Headings Has Question Other	-0.14	1	1	35 %	80 %
120	Variation Density in Top 30KB Relevancy	-0.14	310	6	55 %	80 %
121	LSI Words in H3 Tags Relevancy	-0.14	97	20	40 %	91 %
122	Search Result Uses HTTPS Other	-0.14	1	1	81 %	85 %
123	Number of Social Pages Authority	-0.14	25	4	58 %	82 %
124	Inline CSS Kilobytes Size	-0.14	189	59	63 %	87 %
125	Number of H4 Tags Size	-0.14	23	4	31 %	83 %
126	Variations making whole H1-H6 Tags Relevancy	-0.13	3	1	12 %	78 %
127	Has Meta Viewport Technology	-0.13	1	1	79 %	80 %
128	Variations making whole H1, H2, and H3 Tags Relevancy	-0.13	3	1	11 %	77 %
129	Uses JSON-LD url Other	-0.13	1	1	43 %	80 %
130	Title Length Size	-0.13	100	51	79 %	73 %
131	Has Canonical URL Authority	-0.13	1	1	68 %	74 %
132	Title Word Count Size	-0.13	28	8	79 %	73 %
133	Uses Schema organization Other	-0.13	1	1	31 %	76 %
134	Number of Absolute URLs Authority	-0.13	872	270	81 %	80 %
135	Variations in Strong Tags Relevancy	-0.13	289	3	23 %	82 %
136	Number of Questions In H2 Tags Size	-0.13	3	1	22 %	81 %
137	Number of Questions Size	-0.13	247	15	64 %	77 %
138	Has Entities in H3 Tags Relevancy	-0.13	1	1	37 %	87 %
139	Number Of Claimed Brands Other	-0.13	60	2	22 %	81 %
140	Number of Twitter Accounts Authority	-0.13	5	1	19 %	74 %
141	LSI Words in Meta Description Tag Relevancy	-0.13	23	9	49 %	91 %
142	Uses JSON-LD description Other	-0.13	1	1	37 %	76 %
143	Number of Prices Size	-0.13	565	102	65 %	80 %
144	Uses JSON-LD Organization Other	-0.13	1	1	28 %	76 %
145	Variations in Footer Tags Relevancy	-0.13	6817	32	31 %	84 %
146	Exact Matches in Sentences Relevancy	-0.13	37	3	20 %	88 %
147	Uses JSON-LD ListItem Other	-0.13	1	1	31 %	77 %
148	Title Tag Has Entities Relevancy	-0.13	1	1	58 %	86 %
149	Is Article Page Other	-0.13	1	1	39 %	73 %
150	Page Size Kilobytes Size	-0.13	804	338	80 %	72 %
151	Search Result URL Length Size	-0.13	96	63	96 %	59 %
152	Meta Description Length Size	-0.12	456	116	64 %	76 %
153	Has Meta Robots Other	-0.12	1	1	24 %	75 %
154	Has Terms of Service Trust	-0.12	1	1	40 %	67 %
155	Uses JSON-LD BreadcrumbList Other	-0.12	1	1	30 %	77 %
156	Exact Matches in Top 30KB Relevancy	-0.12	14	2	17 %	85 %
157	Has Contact Page Trust	-0.12	1	1	57 %	71 %
158	Word Count in Meta Description Size	-0.12	65	19	64 %	78 %
159	Has Google Verify Technology	-0.12	1	1	18 %	73 %
160	Number of Questions In H3 Tags Size	-0.12	4	1	17 %	80 %
161	Variations Making Whole Span Tags Relevancy	-0.12	5	1	16 %	83 %
162	Exact Matches in Title Tag Relevancy	-0.12	1	1	16 %	83 %
163	Has Apple Touch Icon Technology	-0.12	1	1	46 %	73 %
164	Has Schema Markup Relevancy	-0.12	1	1	60 %	71 %
165	Variations making whole A Tags Relevancy	-0.12	115	2	22 %	81 %
166	Entities in H4 Tags	-0.12	21	2	16 %	89 %
167	Uses Schema logo Other	-0.12	1	1	12 %	64 %
168	Inline JavaScript Kilobytes Size	-0.12	534	139	75 %	63 %
169	Has HREF Lang Technology	-0.12	1	1	14 %	69 %
170	Number of H5 Tags Size	-0.12	9	2	15 %	78 %
171	Search Result Summary Length Size	-0.12	161	151	97 %	66 %
172	Variations Making Whole LI Tags Relevancy	-0.12	7	1	18 %	81 %
173	Uses JSON-LD logo Other	-0.12	1	1	11 %	65 %
174	Has OpenGraph Image Relevancy	-0.12	1	1	53 %	70 %
175	Number of Email Addresses Trust	-0.12	22	4	39 %	80 %
176	Number of HREF Lang Tags Size	-0.12	46	2	13 %	77 %
177	Uses Schema product Other	-0.12	1	1	8 %	50 %
178	Number of Nofollow Links Authority	-0.12	18	3	21 %	79 %
179	Uses Schema addresslocality Other	-0.12	1	1	16 %	63 %
180	Variations in I Tags Relevancy	-0.12	568	6	17 %	78 %
181	Has OpenGraph Type Relevancy	-0.12	1	1	59 %	73 %
182	Has Meta Description Relevancy	-0.12	1	1	63 %	73 %
183	Uses JSON-LD FAQPage Other	-0.12	1	1	9 %	65 %
184	Uses Microdata Review	-0.12	1	1	2 %	11 %
185	Uses JSON-LD Answer Other	-0.12	1	1	9 %	67 %
186	Uses Schema name Other	-0.12	1	1	57 %	71 %
187	Uses JSON-LD Question Other	-0.12	1	1	9 %	67 %
188	Uses JSON-LD Product Other	-0.12	1	1	7 %	51 %
189	Uses Schema answer Other	-0.12	1	1	10 %	68 %
190	Uses Schema question Other	-0.12	1	1	10 %	67 %
191	Uses Schema aggregaterating Other	-0.12	1	1	9 %	63 %
192	Uses Schema faqpage Other	-0.12	1	1	10 %	67 %
193	Uses JSON-LD streetAddress Other	-0.12	1	1	15 %	63 %
194	Uses JSON-LD addressLocality Other	-0.12	1	1	15 %	63 %
195	Uses JSON-LD postalCode Other	-0.12	1	1	14 %	62 %
196	Is OpenGraph Type Article Technology	-0.12	1	1	29 %	64 %
197	Uses Schema postalcode Other	-0.12	1	1	15 %	63 %
198	Uses Schema postaladdress Other	-0.12	1	1	16 %	63 %
199	Uses JSON-LD datePublished Other	-0.12	1	1	31 %	66 %
200	Variations in Button Tags Relevancy	-0.12	5433	27	10 %	84 %

Measures 150620 SEO Factors

148898 Built-In SEO Factors

139696 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